Atlas of Peculiar Galaxies
Material emanating from elliptical galaxies

Arp Number
Common Name
Notes
137
NGC 2914
Spiral galaxy with faint spiral arms
138
NGC 4015
Interacting pair of galaxies
139
Arp 139
Interacting pair of galaxies
140
NGC 274, NGC 275
Interacting pair of galaxies
141
UGC 3730
Ring galaxy system
142
NGC 2936, NGC 2937, UGC 5130
Galaxy triplet
143
NGC 2444, NGC 2445
Ring galaxy system
144
NGC 7828, NGC 7829
Ring galaxy system
145
UGC 1840
Ring galaxy system

Question: What are the structural differences between NGC 2914 and NGC 4015?
Answer: NGC 2914 (Arp 137) is a spiral galaxy with faint spiral arms and NGC 4015 (Arp 138) is an interacting pair of galaxies.